Use Euclid’s division lemma to show that the cube of any positive integer is of the form 9m, 9m +1 or 9m +8.
Ans. let a be any positive integer and b =3 a = 3q +r, where q ≥ 0 and 0 ≤ r < 3 Since a =3q or 3q + 1 or 3q +2...
Tagged: ncrt cbse Use Euclid’s division lemma to show that the cube of any positive integer is of the form 9m
